/* 公共样式 */
/* 字符集声明 */
@charset "utf-8";
/* 内外边距默认样式去掉 */
body,h1,h2,h3,h4,h5,h6,p,ul,dl,dd,dt,li,ol{ margin: 0;padding: 0;}
/* 列表去掉小圆点 */
ul,ol{list-style: none;}
/* 去掉a的下划线 */
a{
    text-decoration: none;
}
/* 垂直对齐 */
img{vertical-align: bottom;}
/* 版心 */
.container{
    width: 1200px;
    margin: 0 auto;
}

body {
    display: flex;
    flex-direction: column;
}
//头部公共样式
header {
    /* 保证屏幕最小宽度为版心宽度 */
    min-width: 1200px;

    a {
        color: #fff;
    }

    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    height: 70px;
    width: 100%;
    border-bottom: 1px solid #ccc;
    line-height: 70px;
    position: absolute;
    z-index: 50;

    .logodiv {
        height: 70px;
        width: 130px;
    }

    .register {
        background-color: rgb(237, 81, 10);
        border: none;
        height: 30px;
        width: 90px;
        border-radius: 15px;


    }

    .login {
        border: 1px solid green;
        padding: 3px 15px;
        border-radius: 25px;
        font-size: 14px;
        margin-right: 15px;
        border: 1px solid #ccc;
        background: rgba(255, 255, 255, 0.1);
    }

    .img {
        .logo {
            position: absolute;
            top: 50%;
            transform: translateY(-25%);
        }
    }
    nav {
        display: flex;
        justify-content: space-around;
        a {
            margin: 0 8px;
        }

        a.active {
            padding-bottom: 20px;
            font-size: 18px;
            border-bottom: 2px solid rgb(16, 174, 47);
            line-height: 65px;
        }
    }

}